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Finding the Fourth Proportional to 2,018.68, 3,028.04 and 720.10

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Solution

The fourth proportional to 2,018.68, 3,028.04 and 720.10 is: 1,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.68 : 3,028.04 = 720.10 : x
  2. Step 2: Convert to fraction form
    2,018.68/3,028.04 = 720.10/x
  3. Step 3: Cross multiply
    2,018.68x = 3,028.04 × 720.10
  4. Step 4: Simplify right side
    2,018.68x = 2,180,491.60
  5. Step 5: Solve for x
    x = 2,180,491.60/2,018.68
  6. Step 6: Final answer
    x = 1,080.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.